Quartet or Foursome.
The group of people in the church are called a congregation.
People at a concert are called several things:crowdaudienceconcertgoersfans
It is called a quintet
A group with nine people is called a nonet.
A group called the Turks.
Quartet.
A group of four people singing is called a quartet.
They are called quadruplets.
A social group of four people is often referred to as a "quartet." This term is commonly used in various contexts, including music, where it denotes a group of four musicians or singers. In a broader social context, it can simply describe any group of four individuals interacting together.
One word is quartet.Some others are tetrad and foursome.If they are four people, a jocular term is "gang of four".
Quartet.
A group of twenty people is commonly referred to as a "score," as in "four score and twenty years ago." However, in more casual contexts, it can simply be called a "group of twenty" or a "twenty-person group." There isn’t a widely recognized specific term for just twenty people.
Quad or its derivatives refer to four of something or a forth part of something. A group of four people is called a quartet, one of these would be a quarter of the quartet
The four ateroids names reported by TFAGOPG (The Four Asteroids Group of People Group) says that they are named Meg, Jo, Beth, and Amy. This cluster of asteroids is also called the LW asteroids. Statistics provided by: TFAGOPG and LW Asteroid Group
A quartet
A group with nine people is called a nonet.
A group of people is called a crowd